Christopher Murray Grieve (11 August 1892 – 9 September 1978), known by his pen name Hugh MacDiarmid (/məkˈdɜːrmɪd/), was a Scottish poet, journalist, essayist and political figure. He is best known for his works written in 'synthetic Scots', a literary version of the Scots language that MacDiarmid himself developed. However, Grieve's earliest work -- such as Annals of the Five Senses was written in English, and from the early 1930s onwards much of the poetry published under MacDiarmid's name was written in an English that was supplemented to varying degrees by scientific and technical vocabularies.